Update Drone for other platforms

.drone.yml

@@ -8,14 +8,19 @@ steps:
   commands:
   - go get github.com/reujab/wallpaper
   - go vet -v
-  - go build
+  - GOOS="linux" go build -o SpaceFace-Linux
+  - GOOS="windows" go build -o SpaceFace-Win.exe
+  - GOOS="darwin" go build -o SpaceFace-macOS
 - name: gitea_release
   image: plugins/gitea-release
   settings:
     base_url: https://git.nightmare.haus
     api_key:
       from_secret: gitea_token
-    files: ./SpaceFace
+    files: 
+      - ./SpaceFace-Linux
+      - ./SpaceFace-Win.exe
+      - ./SpaceFace-macOS
     checksum:
       - md5
       - sha1